Toolsbox

Antenna length

½-wave dipole (total)
—
Each dipole leg
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¼-wave vertical
—
⅝-wave vertical
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Starting values with a 0.95 velocity factor: cut a little long and trim with an SWR meter.

Power: watts and dBm

dBW
—
mW
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Type in either field: the other updates automatically.

SWR

Reflected power
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Return loss
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Mismatch loss
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Reflection coefficient
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QTH Locator

Locator
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Distance
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Bearing
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